> 5-character alnum passphrase on iOS takes years to brute force. No, it doesn't. That's only 60 million combinations. Writing the code would take longer than

> 5-character alnum passphrase on iOS takes years to brute force. No, it doesn't. That's only 60 million combinations. Writing the code would take longer than the brute force search. Of course, there are already commercial applications that do all that.